It is calculated as the product of movement kinetic energy and rotation energy.
 
where:
| m | mass of braked mass | |
| v | speed of braked mass | |
| I | moment of inertia is a measure of the tendency of the force to rotate the body upon which it acts about an axis of inertia of braked mass | |
| ω | revolutions/speed of braked mass [rad/s] |